NK CTPR3SS Swivel Plate Caster with Non Marking Soft Gray Rubber TPR Wheel (3 -Inch, Swivel Caster) ## Total Lock Brake System is NOT available for 3 -inch Caster Wheels Size: 3 x 1-1/4" / Overall Height: 4-3/8" Non Marking Swivel Caster Material: Thermoplastic Rubber Gray Soft Rubber (TPR) Mounting Size: 2-1/2" x 3-5/8" top plate